Parallel & Perpendicular Lines
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are parallel lines?
Back
Parallel lines are lines in a plane that never meet. They have the same slope but different y-intercepts.
2.
FLASHCARD QUESTION
Front
What are perpendicular lines?
Back
Perpendicular lines are lines that intersect at a right angle (90 degrees). The slopes of perpendicular lines are negative reciprocals of each other.
3.
FLASHCARD QUESTION
Front
What is the slope of a line?
Back
The slope of a line is a measure of its steepness, usually represented as 'm' in the equation of a line, and is calculated as the rise over run.
4.
FLASHCARD QUESTION
Front
How do you determine if two lines are parallel?
Back
Two lines are parallel if they have the same slope (m) in their equations.
5.
FLASHCARD QUESTION
Front
How do you determine if two lines are perpendicular?
Back
Two lines are perpendicular if the product of their slopes is -1.
6.
FLASHCARD QUESTION
Front
What is the equation of a line in slope-intercept form?
Back
7.
FLASHCARD QUESTION
Front
What is the slope of a vertical line?
Back
The slope of a vertical line is undefined.
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